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Search: Posts Made By: TransEngineer
Forum: 4.7L PowerTech V8 Specific Topics Today, 10:07 AM
Replies: 3
Views: 42
Posted By TransEngineer
P0700 is a flag code (that sets in the Engine...

P0700 is a flag code (that sets in the Engine Control Module [ECM]) to tell you there is some other (transmission) fault set in the Transmission Control Module [TCM]. We do this because most scan...
Forum: 2014 Dodge Ram Forum Yesterday, 10:33 AM
Replies: 233
Views: 18,746
Posted By TransEngineer
Let me reiterate my request for information, from...

Let me reiterate my request for information, from owners who have experienced harsh coastdown shifts. I've only gotten a handful of responses so far. So please, if you have this issue, PM me the...
Forum: 5.7L V8 Specific Topics 09-15-2014, 08:50 AM
Replies: 4
Views: 68
Posted By TransEngineer
Have a dealer quicklearn the trans (which they do...

Have a dealer quicklearn the trans (which they do using a scan tool). That will reset all the shift adaptives and re-learn the clutch volumes. That may take care of it.
Forum: 2014 Dodge Ram Forum 09-12-2014, 12:16 PM
Replies: 233
Views: 18,746
Posted By TransEngineer
There was a running change made to the valve body...

There was a running change made to the valve body separator plate (which resulted in a new service valve body assy P/N), but I don't have the details regarding that change. There are no...
Forum: 2014 Dodge Ram Forum 09-12-2014, 08:04 AM
Replies: 233
Views: 18,746
Posted By TransEngineer
OK, folks, I need to collect some information if...

OK, folks, I need to collect some information if you could all help me out. If you are experiencing the harsh coastdown shift(s) with 8-speed transmission when coming to a stop, please PM me the...
Forum: 2014 Dodge Ram Forum 09-11-2014, 10:46 AM
Replies: 233
Views: 18,746
Posted By TransEngineer
I don't know the details on the driveshaft...

I don't know the details on the driveshaft concern, but a Rapid Response Transmittal (RRT) is issued when we find a particular concern with a particular (typically small) group of vehicles. The RRT...
Forum: 2010 Dodge Ram Forum 09-04-2014, 04:20 PM
Replies: 15
Views: 529
Posted By TransEngineer
There's really no way to stop it. You are...

There's really no way to stop it. You are hearing the solenoid pulses as it applies one of the clutches. The solenoids are designed to be quiet, but some noise is unavoidable. You might compare...
Forum: 5.7L V8 Specific Topics 09-04-2014, 01:54 PM
Replies: 33
Views: 893
Posted By TransEngineer
It's in the harness between the trans and the...

It's in the harness between the trans and the PCM. Look up wiring diagrams and connector pinouts for your truck at rambodybuilder.com. The UD pressure switch wire is the one that connects to pin...
Forum: 2014 Dodge Ram Forum 09-04-2014, 08:37 AM
Replies: 5
Views: 219
Posted By TransEngineer
I'm not aware of any "typical" 8-speed trans...

I'm not aware of any "typical" 8-speed trans noises during WOT shifts. My first thought would be engine accessory drive (belt chirp due to the sudden engine speed change during the shift).
Forum: 2010 Dodge Ram Forum 09-04-2014, 08:24 AM
Replies: 15
Views: 529
Posted By TransEngineer
First thing that comes to mind is solenoid buzz. ...

First thing that comes to mind is solenoid buzz. You might compare it to a Dodge or Chrysler minivan (they often have pretty audible solenoid buzz). Listen to one up close, while it's stopped, when...
Forum: 5.7L V8 Specific Topics 09-03-2014, 01:35 PM
Replies: 33
Views: 893
Posted By TransEngineer
Replacing the LP sensor won't fix it. Replace...

Replacing the LP sensor won't fix it. Replace the UD pressure switch wire.
Forum: 2010 Dodge Ram Forum 09-03-2014, 08:28 AM
Replies: 15
Views: 529
Posted By TransEngineer
How fast is the ticking noise? Like a rapid...

How fast is the ticking noise? Like a rapid grinding / buzzing? Or a slower tap-tap-tap? Does it happen only during a shift, or also when you're in a certain gear?
Forum: 2014 Dodge Ram Forum 09-02-2014, 01:43 PM
Replies: 24
Views: 1,024
Posted By TransEngineer
I suppose that might be possible, but it's not a...

I suppose that might be possible, but it's not a common problem I've heard of on the 8-speeds.
Forum: 2014 Dodge Ram Forum 09-02-2014, 10:08 AM
Replies: 24
Views: 1,024
Posted By TransEngineer
OK, if the engine stalls, the trans will shift...

OK, if the engine stalls, the trans will shift itself into Neutral. It will flash the "D" on the shifter to indicate that the shifter position (D) does not match the actual trans gear range...
Forum: 5.7L V8 Specific Topics 09-02-2014, 08:14 AM
Replies: 2
Views: 105
Posted By TransEngineer
So what do you get on the PRNDL display? ...

So what do you get on the PRNDL display? Everything "boxed" at once? Will the engine start (when it's really in Park or Neutral)?

I'm guessing there is a problem with the T41 circuit. The TRS...
Forum: 4.7L PowerTech V8 Specific Topics 08-28-2014, 08:38 AM
Replies: 5
Views: 100
Posted By TransEngineer
In this case, it's not the load (torque) that's...

In this case, it's not the load (torque) that's the problem, but rather the heat you are putting into the clutches if you allow it to shift constantly back and forth. So if I were you, I would tap...
Forum: 4.7L PowerTech V8 Specific Topics 08-27-2014, 03:31 PM
Replies: 5
Views: 100
Posted By TransEngineer
Yeah, I'm thinking that the throttle control is...

Yeah, I'm thinking that the throttle control is OK at medium-to-high openings, but something goes unstable or flaky when at light/closed throttle (and maybe that's related to the idle instability). ...
Forum: 4.7L PowerTech V8 Specific Topics 08-27-2014, 12:39 PM
Replies: 5
Views: 100
Posted By TransEngineer
I don't know about the idle speed fluctuation,...

I don't know about the idle speed fluctuation, maybe someone else has an idea on that?

First step for the "OD hunting" is to determine exactly what's going on. Is the trans shifting back and...
Forum: 5.7L V8 Specific Topics 08-27-2014, 09:17 AM
Replies: 33
Views: 893
Posted By TransEngineer
Keep checking it and see if it's always the P0876...

Keep checking it and see if it's always the P0876 fault you get.

If it blows the fault right at startup (in Park or Neutral), then it could be a broken wire or bad connection (on the UD pressure...
Forum: 2014 Dodge Ram Forum 08-27-2014, 08:11 AM
Replies: 25
Views: 874
Posted By TransEngineer
Yes, only a couple models in the US still come...

Yes, only a couple models in the US still come with the 6-speed as standard, and it depends on the cab style / box length as well as trim level. Canadian market is different; more models in Canada...
Forum: 2012 Dodge Ram Forum 08-27-2014, 08:07 AM
Replies: 6
Views: 294
Posted By TransEngineer
You're correct, it's technically not a "manual...

You're correct, it's technically not a "manual shift" (what we typically call AutoStick, where you can manually shift the trans up and down). Electronic Range Select (ERS) only allows you to limit...
Forum: 5.7L V8 Specific Topics 08-27-2014, 08:01 AM
Replies: 33
Views: 893
Posted By TransEngineer
So about every 3rd key start, it sets a P0876...

So about every 3rd key start, it sets a P0876 fault when it shifts to 2nd gear? Which puts the trans in limp-in (4th gear only), so it's really sluggish from a stop?

P0876 is UD Pressure Switch...
Forum: 4.7L (287 cu in) PowerTech V8 Specific Topics 08-26-2014, 01:28 PM
Replies: 3
Views: 79
Posted By TransEngineer
Maybe you were just getting a downshift?

Maybe you were just getting a downshift?
Forum: 2014 Dodge Ram Forum 08-26-2014, 12:58 PM
Replies: 24
Views: 1,024
Posted By TransEngineer
There are many fault codes that will not light...

There are many fault codes that will not light the CEL. Generally, only faults that affect emissions (or cause limp-in, which affects emissions) light the CEL.

So it's best to check it with a...
Forum: 2014 Dodge Ram Forum 08-26-2014, 11:49 AM
Replies: 24
Views: 1,024
Posted By TransEngineer
Many code readers only read faults in the ECM /...

Many code readers only read faults in the ECM / PCM. The 8-speed trans uses a separate TCM, so he should specifically check for TCM faults.

Engine speed should go up (if it changes at all) during...
Showing results 1 to 25 of 500

 
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